QA/G-8 provides non-mandatory guidance to assist users in verifying and validating environmental data. The guidance discusses alternative approaches to data validation, including examples of statistics-based validation techniques, and options for verifying that the validated data satisfy relevant claims about their authenticity and quality.

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The Volunteer Monitor's Guide To Quality Assurance Project Plans

EPA 841-B-96-003September 1996

This document was prepared by the EPA Office of Wetlands, Oceans, and Watersheds (OWOW), and is designed to encourage and facilitate the development of volunteer QAPPs by presenting explanations and examples. The examples follow the format of the EPA QA/R-5 EPA Requirements for Quality Assurance Project Plans for Environmental Data Operations guidance. This document explains the basic steps and processes one goes through when preparing a quality assurance project plan. Highly recommended introductory-level document if you are just getting started with the preparation of quality assurance project plans for any EPA program.

This guidance document describes key principles and best practices for Brownfields site assessment quality assurance and quality control based on program experience. It is intended as a reference for people involved in the Brownfields site assessment process. This document follows the EPA QA/R-5 and QA/G-5 format listed above.

QA/G-5i will provide guidance on data quality indicators (DQIs), including the PARRC parameters (i.e., precision, accuracy, reproducibility, representativeness, and comparability) and how they fit into the implementation of the DQO process. The guidance discusses the role of DQIs in sampling and analytical measurements.

Peer review of this document is complete. A final version has been drafted but has not been released as yet. Target date: Unknown.

QA/G-4 provides non-mandatory guidance on developing Data Quality Objectives (DQOs) using a systematic planning process based on the graded approach. The guidance presents a step-by-step description of the DQO process. The Aug 2000 version supercedes the Sept 1994 version.

QA/G-4D is a PC-based software package designed to determine the feasibility of data quality objectives defined using the Data Quality Objectives (DQO) process. The software supplements the guidance provided in EPA QA/G-4. The previous DOS-based software has been replaced with a Windows-based software program.